Open AccessMicrobial secondary metabolites are an alternative approaches against insect vector to prevent zoonotic diseases
Author(s) -
Dharumadurai Dhanasekaran,
Ramasundaram Thangaraj
Publication year - 2014
Publication title -
asian pacific journal of tropical disease
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.208
H-Index - 33
ISSN - 2222-1808
DOI - 10.1016/s2222-1808(14)60569-7
Subject(s) - actinobacteria , biology , bacillus sphaericus , bacillus thuringiensis , bacillus (shape) , biopesticide , microorganism , bacteria , bacillus anthracis , microbiology and biotechnology , biological pest control , pathogenic bacteria , spore , insect , bacillales , botany , pesticide , ecology , genetics , 16s ribosomal rna , bacillus subtilis
Approximately 1500 naturally occurring microorganisms have been identified as potentially\udinsecticidal agents. Metabolites from 942 microbial isolates were screened for insecticidal\udand properties. The isolates included 302 streptomycetes, 502 novel actinobacteria including\udrepresentatives of 18 genera, 28 unidentified aerobic actinobacteria, 70 fungi and 40 bacteria other\udthan actinobacteria showed the insecticidal activity. Most spore-forming bacteria pathogenic to\udinsects belong to the family Bacillaceae. Only four Bacillus species namely Bacillus thuringiensis,\udBacillus popilliae, Bacillus lentimorbus, Bacillus sphaericus have been closely examined as insect\udcontrol agents. Fungi are applied directly in the form of spores, mycelia or blastospores or by their\udmetabolites. Many viruses that belong to the family Baculoviridae are pathogenic in insects. The\udmicrobial insecticides are generally pest-specific, readily biodegradable and usually lack toxicity\udto higher animals. This review paper communicates the insect problem in the transmission of\uddiseases in human, animals, plants and problem of chemical insecticides control of insects using\udmicrobial metabolites from actinobacteria, bacteria, fungi and viruses